Tick label on y axis isn't exactly zero

[null-a]

I'm seeing this fairly often (1 in 5?) on a model I've been playing with:

I'm happy to dig into this more if that would be helpful.

[longouyang]

This might be the smart number formatter or Javascript's weird number system. Hard to tell right now.

When you get a chance, could you play around with different seeds to reproduce this and then send the model + seed my way?

[null-a]

Sure, seems like this reproduces it on current webppl.org:

util.seedRNG(1481745082696)
viz.auto(MH(function() {
  var x = gaussian(0,1)
  var y = gaussian(x,.1)
  return {x, y}
},100))